Proprietary Player Extraction
Definition
An acquisition method in which the examiner uses the vendor's own playback software to export footage from a running device. Fast and convenient, but the output is controlled by the vendor's software and may differ from the raw stored data.
- Source
- Vendor's own playback software on a running device
- Advantage
- Fast and requires no special forensic tools
- Limitation
- Output shaped by vendor software, may not match raw data
- Typical use
- Live or on-site CCTV export when imaging is impractical
Common questions
Why would an examiner accept a lower-fidelity method like proprietary player extraction?+
Some DVR systems cannot be shut down or disk-imaged on scene without disrupting an active business, so exporting via the vendor's built-in playback interface is often the only practical option, accepting the tradeoff for speed and non-disruption.
What should be documented when using proprietary player extraction?+
The examiner should record the software name and version used, export settings selected, and any resampling or transcoding the vendor tool applies, since these choices affect whether the exported clip can be treated as a faithful copy of the original recording.
Related terms
- Chain of Custody
- The documented chronological record of who collected, handled, transferred, and examined a piece of evidence. For digital evidence, chain of custody includes...
- DVR (Digital Video Recorder)
- A recorder that accepts analogue camera signals, digitises them internally, compresses the result using a proprietary or standard codec, and writes to...
- Multiplexing
- The practice of interleaving frames from multiple camera channels into a single recording file. Each channel gets a share of the total...
- NVR (Network Video Recorder)
- A recorder that receives pre-compressed IP-camera streams over a LAN and stores them, typically in a structured folder on an internal drive....
- Write Blocker
- A hardware or software device interposed between a digital storage medium and the forensic workstation that prevents any write commands from reaching...